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Commit ec5eb82a authored by Ameer Armaly's avatar Ameer Armaly
Browse files

Add four-finger gestures. 

This CL includes the following gestures:
1) Four-finger single / double / triple tap.
2) Four-finger swipe up / down / left / right.

Bug: 136131815
Test: atest GestureManifoldTest AccessibilityGestureDetectorTest TouchExplorerTest
Change-Id: If5b4bfc680423f0672452b9aa440c8f18333f565
parent 6dc501b9

api/current.txt

+7 −0
Original line number Diff line number Diff line
@@ -2888,6 +2888,13 @@ package android.accessibilityservice { 
    field public static final int GESTURE_3_FINGER_SWIPE_RIGHT = 32; // 0x20

    field public static final int GESTURE_3_FINGER_SWIPE_UP = 29; // 0x1d

    field public static final int GESTURE_3_FINGER_TRIPLE_TAP = 24; // 0x18

    field public static final int GESTURE_4_FINGER_DOUBLE_TAP = 38; // 0x26

    field public static final int GESTURE_4_FINGER_SINGLE_TAP = 37; // 0x25

    field public static final int GESTURE_4_FINGER_SWIPE_DOWN = 34; // 0x22

    field public static final int GESTURE_4_FINGER_SWIPE_LEFT = 35; // 0x23

    field public static final int GESTURE_4_FINGER_SWIPE_RIGHT = 36; // 0x24

    field public static final int GESTURE_4_FINGER_SWIPE_UP = 33; // 0x21

    field public static final int GESTURE_4_FINGER_TRIPLE_TAP = 39; // 0x27

    field public static final int GESTURE_DOUBLE_TAP = 17; // 0x11

    field public static final int GESTURE_DOUBLE_TAP_AND_HOLD = 18; // 0x12

    field public static final int GESTURE_SWIPE_DOWN = 2; // 0x2

core/java/android/accessibilityservice/AccessibilityGestureEvent.java

+22 −1
Original line number Diff line number Diff line
@@ -31,6 +31,13 @@ import static android.accessibilityservice.AccessibilityService.GESTURE_3_FINGER 
import static android.accessibilityservice.AccessibilityService.GESTURE_3_FINGER_SWIPE_RIGHT;

import static android.accessibilityservice.AccessibilityService.GESTURE_3_FINGER_SWIPE_UP;

import static android.accessibilityservice.AccessibilityService.GESTURE_3_FINGER_TRIPLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_DOUBLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SINGLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SWIPE_DOWN;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SWIPE_LEFT;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SWIPE_RIGHT;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SWIPE_UP;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_TRIPLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_DOUBLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_DOUBLE_TAP_AND_HOLD;

import static android.accessibilityservice.AccessibilityService.GESTURE_SWIPE_DOWN;
@@ -105,7 +112,14 @@ public final class AccessibilityGestureEvent implements Parcelable { 
            GESTURE_3_FINGER_SWIPE_DOWN,

            GESTURE_3_FINGER_SWIPE_LEFT,

            GESTURE_3_FINGER_SWIPE_RIGHT,

            GESTURE_3_FINGER_SWIPE_UP

            GESTURE_3_FINGER_SWIPE_UP,

            GESTURE_4_FINGER_DOUBLE_TAP,

            GESTURE_4_FINGER_SINGLE_TAP,

            GESTURE_4_FINGER_SWIPE_DOWN,

            GESTURE_4_FINGER_SWIPE_LEFT,

            GESTURE_4_FINGER_SWIPE_RIGHT,

            GESTURE_4_FINGER_SWIPE_UP,

            GESTURE_4_FINGER_TRIPLE_TAP

    })

    @Retention(RetentionPolicy.SOURCE)

    public @interface GestureId {}
@@ -165,6 +179,9 @@ public final class AccessibilityGestureEvent implements Parcelable { 
            case GESTURE_3_FINGER_SINGLE_TAP: return "GESTURE_3_FINGER_SINGLE_TAP";

            case GESTURE_3_FINGER_DOUBLE_TAP: return "GESTURE_3_FINGER_DOUBLE_TAP";

            case GESTURE_3_FINGER_TRIPLE_TAP: return "GESTURE_3_FINGER_TRIPLE_TAP";

            case GESTURE_4_FINGER_SINGLE_TAP: return "GESTURE_4_FINGER_SINGLE_TAP";

            case GESTURE_4_FINGER_DOUBLE_TAP: return "GESTURE_4_FINGER_DOUBLE_TAP";

            case GESTURE_4_FINGER_TRIPLE_TAP: return "GESTURE_4_FINGER_TRIPLE_TAP";

            case GESTURE_DOUBLE_TAP: return "GESTURE_DOUBLE_TAP";

            case GESTURE_DOUBLE_TAP_AND_HOLD: return "GESTURE_DOUBLE_TAP_AND_HOLD";

            case GESTURE_SWIPE_DOWN: return "GESTURE_SWIPE_DOWN";
@@ -191,6 +208,10 @@ public final class AccessibilityGestureEvent implements Parcelable { 
            case GESTURE_3_FINGER_SWIPE_LEFT: return "GESTURE_3_FINGER_SWIPE_LEFT";

            case GESTURE_3_FINGER_SWIPE_RIGHT: return "GESTURE_3_FINGER_SWIPE_RIGHT";

            case GESTURE_3_FINGER_SWIPE_UP: return "GESTURE_3_FINGER_SWIPE_UP";

            case GESTURE_4_FINGER_SWIPE_DOWN: return "GESTURE_4_FINGER_SWIPE_DOWN";

            case GESTURE_4_FINGER_SWIPE_LEFT: return "GESTURE_4_FINGER_SWIPE_LEFT";

            case GESTURE_4_FINGER_SWIPE_RIGHT: return "GESTURE_4_FINGER_SWIPE_RIGHT";

            case GESTURE_4_FINGER_SWIPE_UP: return "GESTURE_4_FINGER_SWIPE_UP";

            default: return Integer.toHexString(eventType);

        }

    }

core/java/android/accessibilityservice/AccessibilityService.java

+21 −0
Original line number Diff line number Diff line
@@ -388,6 +388,27 @@ public abstract class AccessibilityService extends Service { 
     */

    public static final int GESTURE_3_FINGER_SWIPE_RIGHT = 32;



    /** The user has performed a four-finger swipe up gesture on the touch screen. */

    public static final int GESTURE_4_FINGER_SWIPE_UP = 33;



    /** The user has performed a four-finger swipe down gesture on the touch screen. */

    public static final int GESTURE_4_FINGER_SWIPE_DOWN = 34;



    /** The user has performed a four-finger swipe left gesture on the touch screen. */

    public static final int GESTURE_4_FINGER_SWIPE_LEFT = 35;



    /** The user has performed a four-finger swipe right gesture on the touch screen. */

    public static final int GESTURE_4_FINGER_SWIPE_RIGHT = 36;



    /** The user has performed a four-finger single tap gesture on the touch screen. */

    public static final int GESTURE_4_FINGER_SINGLE_TAP = 37;



    /** The user has performed a four-finger double tap gesture on the touch screen. */

    public static final int GESTURE_4_FINGER_DOUBLE_TAP = 38;



    /** The user has performed a four-finger triple tap gesture on the touch screen. */

    public static final int GESTURE_4_FINGER_TRIPLE_TAP = 39;



    /**

     * The {@link Intent} that must be declared as handled by the service.

     */

core/java/android/accessibilityservice/GestureDescription.java

+5 −2
Original line number Diff line number Diff line
@@ -40,7 +40,7 @@ import java.util.List; 
 */

public final class GestureDescription {

    /** Gestures may contain no more than this many strokes */

    private static final int MAX_STROKE_COUNT = 10;

    private static final int MAX_STROKE_COUNT = 20;



    /**

     * Upper bound on total gesture duration. Nearly all gestures will be much shorter.
@@ -194,7 +194,10 @@ public final class GestureDescription { 
        public Builder addStroke(@NonNull StrokeDescription strokeDescription) {

            if (mStrokes.size() >= MAX_STROKE_COUNT) {

                throw new IllegalStateException(

                        "Attempting to add too many strokes to a gesture");

                        "Attempting to add too many strokes to a gesture. Maximum is "

                                + MAX_STROKE_COUNT

                                + ", got "

                                + mStrokes.size());

            }



            mStrokes.add(strokeDescription);

services/accessibility/java/com/android/server/accessibility/gestures/GestureManifold.java

+23 −0
Original line number Diff line number Diff line
@@ -30,6 +30,13 @@ import static android.accessibilityservice.AccessibilityService.GESTURE_3_FINGER 
import static android.accessibilityservice.AccessibilityService.GESTURE_3_FINGER_SWIPE_RIGHT;

import static android.accessibilityservice.AccessibilityService.GESTURE_3_FINGER_SWIPE_UP;

import static android.accessibilityservice.AccessibilityService.GESTURE_3_FINGER_TRIPLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_DOUBLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SINGLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SWIPE_DOWN;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SWIPE_LEFT;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SWIPE_RIGHT;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_SWIPE_UP;

import static android.accessibilityservice.AccessibilityService.GESTURE_4_FINGER_TRIPLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_DOUBLE_TAP;

import static android.accessibilityservice.AccessibilityService.GESTURE_DOUBLE_TAP_AND_HOLD;

import static android.accessibilityservice.AccessibilityService.GESTURE_SWIPE_DOWN;
@@ -133,6 +140,13 @@ class GestureManifold implements GestureMatcher.StateChangeListener { 
                new MultiFingerMultiTap(mContext, 3, 2, GESTURE_3_FINGER_DOUBLE_TAP, this));

        mMultiFingerGestures.add(

                new MultiFingerMultiTap(mContext, 3, 3, GESTURE_3_FINGER_TRIPLE_TAP, this));

        // Four-finger taps.

        mMultiFingerGestures.add(

                new MultiFingerMultiTap(mContext, 4, 1, GESTURE_4_FINGER_SINGLE_TAP, this));

        mMultiFingerGestures.add(

                new MultiFingerMultiTap(mContext, 4, 2, GESTURE_4_FINGER_DOUBLE_TAP, this));

        mMultiFingerGestures.add(

                new MultiFingerMultiTap(mContext, 4, 3, GESTURE_4_FINGER_TRIPLE_TAP, this));

        // Two-finger swipes.

        mMultiFingerGestures.add(

                new MultiFingerSwipe(context, 2, DOWN, GESTURE_2_FINGER_SWIPE_DOWN, this));
@@ -151,6 +165,15 @@ class GestureManifold implements GestureMatcher.StateChangeListener { 
                new MultiFingerSwipe(context, 3, RIGHT, GESTURE_3_FINGER_SWIPE_RIGHT, this));

        mMultiFingerGestures.add(

                new MultiFingerSwipe(context, 3, UP, GESTURE_3_FINGER_SWIPE_UP, this));

        // Four-finger swipes.

        mMultiFingerGestures.add(

                new MultiFingerSwipe(context, 4, DOWN, GESTURE_4_FINGER_SWIPE_DOWN, this));

        mMultiFingerGestures.add(

                new MultiFingerSwipe(context, 4, LEFT, GESTURE_4_FINGER_SWIPE_LEFT, this));

        mMultiFingerGestures.add(

                new MultiFingerSwipe(context, 4, RIGHT, GESTURE_4_FINGER_SWIPE_RIGHT, this));

        mMultiFingerGestures.add(

                new MultiFingerSwipe(context, 4, UP, GESTURE_4_FINGER_SWIPE_UP, this));

    }



    /**